Calculated by summing the personal incomes reported by all household members aged 15 years and over. The Census collects personal income in ranges, so before these can be summed a specific dollar amount needs to be allocated to each person. Median incomes for each range, derived using data from the Survey of Income and Housing, are used for this purpose.Household income is not calculated where a household member aged 15 years and over did not state their income, or was temporarily absent. These households are coded to the 'Partial income stated' category.

If there is a need to recalculate this variable under different circumstances, the derived variable Household Income Derivation Indicator (HIDD) can be used in conjunction with Total Personal Income (weekly) (INCP) to create a new household income variable.